.smenu_item {
    display: inline-block;
    position: absolute;
    cursor: pointer;
    width:60px;
    height:24px;
    text-align: center;
    background: white;
    opacity:0.8;
}

.pin_gnd {
    background: #000000;
    color: #404040;
}

.pin_volt {
    background: #ff0000;
    color: #404040;
}

.pin_in B:before {
    content: "▶ "
}

.pin_out B:before {
    content: "◀ "
}

.pin_on {
    background: #00ff00;
    color: #ffffff;
}

.pin_off {
    background: #004000;
    color: #808080;
}
